I checked in this morning to look at my next booking and it shows them checking in a day LATER then they actually are. A check of their initial inquiry confirms this. Then I notice where my calendar has a ring showing "today" on my calendar, it is actually showing tomorrow's date.
So I got to the reservation page for my next booking and it shows them checking in a day EARLIER. What a mess.
I have been keeping my own calendar while I test out the VRBO reservation manager and now I am glad I did. VRBO, if the data in your reservation manager is unreliable, it makes the whole system useless. I hope this gets fixed soon.